https://en.wikipedia.org/wiki/Hyperoxia

This was a screenshot I took months ago while watching a Geology Hub upload on YT. It was a lightbulb moment for my understanding of mass extinction events, (the largest was 250ma). I’ve referenced this multiple times, so thought I might share. Perhaps you find it as interesting as I do.

  • Tar_Alcaran@sh.itjust.worksEnglish
    3·
    8 days ago

    You can absolutely breathe higher partial oxygen pressure unaided for a long time. Hyperoxia isn’t all that lethal and definitely not quickly, if you’re only visiting, there’s no problem.

    And if you want to live there, you should be much more worried about all the brand new diseases you don’t have immunity to, or the bugs that are bigger than you.

    The low oxygen is definitely a problem, especially if you need to run away from the stuff mentioned above.

    • Dasus@lemmy.worldEnglish
      2·
      8 days ago

      Also someone like a proper Sherpa sherpa from the Himalayas can function with oxygen that’s comparable to 7% sea level oxygen.

      And there are towns with elevation so high the oxygen is equivalent to 15% sea level oxygen.

      So this chart has pretty narrow limits. Sure, the legend does specify “breathe forever unaided”, but someone like a well accustomed sherpa who regularly climbs Mt Everest would have a much wider range than 20-25%

      • Beryl@lemmy.worldEnglish
        1·
        8 days ago

        There are 850k people living in La Paz, Bolivia with the equivalent of 13.2% sea level oxygen and they seem to be doing just fine.

  • BeBa@lemmy.worldEnglish
    1·
    7 days ago

    i just wanna go back a couple decades to prevent a few of my mistakes, invest heavily in bitcoin and watch a couple dead singers perform

  • Beryl@lemmy.worldEnglish
    0·
    8 days ago

    There are 850k people living in La Paz, Bolivia (elevation 3650m) with the equivalent of 13.2% sea level oxygen and they seem to be doing just fine. And granted, the natives of the region display some hemoglobin adaptation, but still… Even Aspen, Colorado sits at about 15% sea level oxygen and I’m pretty sure people don’t wear breathing gear while skiing there.

    • AngryCommieKender@lemmy.worldEnglish
      0·
      7 days ago

      Yep. Dragon Gryphonflys that had around a foot / 30 cm wingspan, and underwater scorpions that were 18 feet / 6 meters long including the tail.